B6917
Seroalbúmina bovina
lyophilized powder, suitable for (for molecular biology), Non-acetylated
Sinónimos:
Albúmina bovina, Albúmina sérica bovina, BSA
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About This Item
Productos recomendados
biological source
bovine
Quality Level
grade
for molecular biology
assay
≥98% (agarose gel electrophoresis)
form
lyophilized powder
quality
deacetylated
mol wt
~66 kDa
purified by
heat shock fractionation
packaging
glass bottle of
origin
USA origin
technique(s)
electrophoresis: suitable-98% using Agarose
impurities
enzymatic impurity, none detected
pH
7
solubility
water: soluble (50 mg/ml)
suitability
suitable for (for molecular biology)
UniProt accession no.
foreign activity
Alkaline Phosphatase free
Alkaline phosphatase and peroxidase, none detected
DNase free
DNase, RNase, and protease, none detected
Peroxidase free
Protease free
RNase free
storage temp.
2-8°C
Gene Information
bovine ... ALB(280717)
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General description
Bovine Serum Albumin (BSA) is a plasma protein produced in the bovine liver that has a globular, non-glycosylated α-helical structure. It consists of a single polypeptide chain with 583 amino acid residues and 17 cysteine residues that form the cross-linked disulfide bridges, stabilizing its structure. The BSA protein comprises three structurally distinct domains (I, II, and III), each of which contains two sub-domains (A and B) arranged in a heart-shaped architecture.
Application
Bovine Serum Albumin (BSA) has been used
- as a component of phosphate buffer saline (PBS) solution for dissolving tumor necrosis factor α (TNFα), which was added as a supplement for culture media
- as a blocking agent to reduce non-specific binding during the albumin sensor assay
- as a blocking agent in the immunofluorescence (IF) assay
- as a protein standard in the Bradford assay
Biochem/physiol Actions
Se sospecha que ciertos epítopos conformacionales y de secuencia primaria son alérgenos en las alergias humanas a la leche y a la carne.
Bovine Serum Albumin (BSA) is a versatile protein commonly utilized in cell and tissue culture media as a supplement. It helps in lipid solubilization and stabilizing other proteins. BSA is also a carrier for small molecules such as steroids, fatty acids, and thyroid hormones. It serves as a standard protein for immunochemical tests to determine protein concentration in a solution and calibration studies.
Features and Benefits
This BSA product for molecular biology is tested for the following properties:
* Alkaline Phosphatase-free
* DNase-free / Exonuclease-free
* Nickase-free / Endonuclease-free
* Peroxidase-free
* Protease-free
* RNase-free
* Alkaline Phosphatase-free
* DNase-free / Exonuclease-free
* Nickase-free / Endonuclease-free
* Peroxidase-free
* Protease-free
* RNase-free
Preparation Note
La seroalbúmina puede denominarse también Fracción V. Esta convención de nomenclatura procede del método original de fraccionamiento de las proteínas séricas de Cohn en el que se utiliza precipitación en etanol frío. Utilizando dicho método, la seroalbúmina se encontró en la fracción quinta del etanol. Desde entonces, algunos han venido utilizando la expresión «Fracción V» para describir la albúmina sérica, al margen del método de preparación. Otros han utilizado este término para describir la seroalbúmina purificada por métodos de fraccionamiento en etanol que se han modificado mucho desde que se describió el método Cohn original. Sigma-Aldrich fabrica y distribuye seroalbúminas purificadas mediante una variedad de métodos primarios, entre ellos el verdadero método de fraccionamiento de Cohn, los métodos de fraccionamiento en etanol modificados, el fraccionamiento térmico y la cromatografía. Etapas de purificación añadidas pueden ser la cristalización o la filtración en carbón activado.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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